Pre/Power Amplifiers

You gotta love items with absolutely perfect names: 'Land Rover Defender', 'Rolex Explorer', 'Fender Jazzmaster'. When founder and chief engineer, Dan D'Agostino, dubbed his assault on the high-end 'Relentless', with cost-no-object flagship monoblock power amps [HFN Mar '20], he might have been referring to himself, as that is how he approached the task. With this matching three-chassis Relentless Preamplifier (£159,500), he's raised the bar once more.

DNM's long-awaited update to the PA3 power amplifier has finally arrived. Fully regulated, the PA3 S reflects the uncompromising approach of its designer Denis Morecroft. Offering just 23W per channel but costing £3750, this stereo power amp has undergone a long gestation, the reasons for which Morecroft outlines in our interview boxout.

The story of DPA is not uncommon among small and specialised hi-fi manufacturers. Arriving in 1992, it actually represented the second iteration of a company co-founded by Robert Watts (who has since gone on to be digital design consultant at Chord Electronics). And while Deltec Precision Audio, which debuted in 1984 with its CTA80 preamplifier, had ultimately shut up shop in the early '90s, the ideas behind its original models clearly had some merit – it was soon back with Watts onboard, albeit under a slightly different name.

There's a classical simplicity about this flagship pre/power amplifier combination from Electrocompaniet. The style – realised here with clear-on-black acrylic fascias with gold detailing – harks back to its first amp, 'The 2 Channel Audio Amplifier' [HFN Dec '11], based on Dr Matti Otala's tackling of 'Transient Intermodulation (TIM)' distortion, shortly after it began operations in 1973.

It’s often said that less can actually be more. For example, many high-end hi-fi products are devoid of fripperies because the lion’s share of the build budget is spent on the bits you can’t see, such as high quality components. This in turn gives better sound per pound, or so the theory goes. Yet other designs come festooned with features and often lack ability in the sonic stakes.

To misquote Sly & The Family Stone just a little, Swedish hi-fi company Engström – it only makes tube amplifiers – is a family affair. Founded by engineer Lars Engström and his industrial designer nephew Timo as recently as 2008, the company is based in Lund, just northeast of Malmö, and has its R&D HQ some 600km away in Nacka, south of Uppsala on the Baltic Sea coast. The division of labour in the company sees Lars Engström as chief engineer, having given up work in fields as diverse as navigation, microcomputing and railway signalling systems in 2001 to concentrate on amplifier development, while his nephew is responsible for the look of the products, and the company operations.

Who remembers the Stella Artois ad that proclaimed its lager was 'reassuringly expensive'? A slightly odd slogan, if you ask me, but it came to mind when setting up Exposure's 3510 pre/power pairing, only substituting the word 'expensive' for 'simple'. Here are two hi-fi products where simplicity has been elevated almost to an art form, reflected in the casework, choice of connections and user experience. And at £1590 a piece, these recently launched models aren't outrageously expensive.